The new CH1 Series is a range of High Bay LED fixtures with features contractors value the most: quality, reliability and performance in a cost-effective design. Models available with 2, 4 and 6 LED modules to deliver a lumen range from 6,000 to 35,000 lumens, up to 171 lumens per watt and an ultra-long life up to 201,000 hours (L70 via TM-21).